/* 
Simple JQuery menu.
HTML structure to use:

Notes: 

1: each menu MUST have an ID set. It doesn't matter what this ID is as long as it's there.
2: each menu MUST have a class 'menu' set. If the menu doesn't have this, the JS won't make it dynamic

Optional extra classnames:

noaccordion : no accordion functionality
collapsible : menu works like an accordion but can be fully collapsed
expandfirst : first menu item expanded at page load

<ul id="menu1" class="menu [optional class] [optional class]">
<li><a href="#">Sub menu heading</a>
<ul>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
...
...
</ul>
<li><a href="#">Sub menu heading</a>
<ul>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
<li><a href="http://site.com/">Link</a></li>
...
...
</ul>
...
...
</ul>

Copyright 2008 by Marco van Hylckama Vlieg

web: http://www.i-marco.nl/weblog/
email: marco@i-marco.nl

Free for non-commercial use
*/

function initMenus() {
    $('ul.menu ul').hide();
    $.each($('ul.menu'), function() {
        var cookie = $.cookie(this.id);
        if (cookie === null || String(cookie).length < 1) {
            $('#' + this.id + '.expandfirst ul:first').show();
        }
        else {
            $('#' + this.id + ' .' + cookie).next().show();
        }
    });
    $('ul.menu li a').click(
		function() {

		    var checkElement = $(this).next();
		    var parent = this.parentNode.parentNode.id;

		    if ($('#' + parent).hasClass('noaccordion')) {
		        if ((String(parent).length > 0) && (String(this.className).length > 0)) {
		            if ($(this).next().is(':visible')) {
		                $.cookie(parent, null);
		            }
		            else {
		                $.cookie(parent, this.className);
		            }
		            $(this).next().slideToggle('normal');
		        }
		    }
		    if ((checkElement.is('ul')) && (checkElement.is(':visible'))) {
		        if ($('#' + parent).hasClass('collapsible')) {
		            $('#' + parent + ' ul:visible').slideUp('normal');
		        }
		        return false;
		    }
		    if ((checkElement.is('ul')) && (!checkElement.is(':visible'))) {
		        $('#' + parent + ' ul:visible').slideUp('normal');
		        if ((String(parent).length > 0) && (String(this.className).length > 0)) {
		            $.cookie(parent, this.className);
		        }
		        checkElement.slideDown('normal');
		        return false;
		    }
		}
	);
}
$(document).ready(function() { initMenus(); });